diff --git a/feed/history/boost_1_68_0.qbk b/feed/history/boost_1_68_0.qbk
index 382417b8..d8409739 100644
--- a/feed/history/boost_1_68_0.qbk
+++ b/feed/history/boost_1_68_0.qbk
@@ -14,6 +14,26 @@
 
 [import ext.qbk]
 
+[section Notes for Windows users]
+
+Boost.WinAPI has been updated to target Windows 7 by default, where possible. In previous releases
+Windows Vista was the default.
+
+Boost.WinAPI is used internally as the Windows SDK abstraction layer in a number
+of Boost libraries, including Boost.Beast, Boost.Chrono, Boost.DateTime, Boost.Dll, Boost.Log,
+Boost.Process, Boost.Stacktrace, Boost.System, Boost.Thread and Boost.UUID. To select the target
+Windows version define `BOOST_USE_WINAPI_VERSION` to the numeric version similar to `_WIN32_WINNT`
+while compiling Boost and user's code. For example:
+
+[pre
+    b2 release define=BOOST_USE_WINAPI_VERSION=0x0501 stage
+]
+
+The list of Windows API version numbers can be seen on
+[@https://msdn.microsoft.com/en-us/library/6sehtctf.aspx this] page.
+
+[endsect]
+
 [section New Libraries]
 
 * [phrase library..[@/libs/yap/ YAP]:] An expression template library